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Water-cooled screw chillers EWWD 340 - C18EJYNN EWWD 360 - C12EJYNN/A EWLD 320 - C17EJYNN 50Hz – Refrigerant: R-134a Original Instructions

Installation, Operation and Maintenance ManualD – KIMWC00412-09EN

D – KIMWC00412-09EN -2/88

Contents Contents............................................................................................................................................................................. 2 General information .......................................................................................................................................................... 6

Warnings for the operator................................................................................................................................................. 6 Assistance ........................................................................................................................................................................ 6 Spare parts....................................................................................................................................................................... 6 Receiving the machine ..................................................................................................................................................... 6 Checks ............................................................................................................................................................................. 7 Purpose of this manual..................................................................................................................................................... 7 Important information on the refrigerant used................................................................................................................... 7 NOMENCLATURE ........................................................................................................................................................... 8 Technical Specifications ................................................................................................................................................... 9 Sound pressure levels .................................................................................................................................................... 22 Sound pressure correction factors for different distances............................................................................................... 24

Operating limits............................................................................................................................................................... 25 Storage........................................................................................................................................................................... 25 Operation........................................................................................................................................................................ 25

Mechanical Installation................................................................................................................................................... 28 Shipping ......................................................................................................................................................................... 28 Responsibility ................................................................................................................................................................. 28 Safety ............................................................................................................................................................................. 28 Handling and lifting......................................................................................................................................................... 28 Positioning and assembly............................................................................................................................................... 29 Minimum space requirements ........................................................................................................................................ 30 Ventilation....................................................................................................................................................................... 30 Sound protection ............................................................................................................................................................ 30 Water piping ................................................................................................................................................................... 30 Water treatment.............................................................................................................................................................. 31 Evaporator and exchangers anti-freeze protection......................................................................................................... 32 Installing the flow switch................................................................................................................................................. 32

Pressure drops................................................................................................................................................................ 33 Total heat recovery (option on request)........................................................................................................................ 38 Partial Heat recovery (option on request) ..................................................................................................................... 40 Electrical Installation ...................................................................................................................................................... 41

General specifications .................................................................................................................................................... 41 Electrical components .................................................................................................................................................... 44 Electrical wiring .............................................................................................................................................................. 44 Oil Heaters ..................................................................................................................................................................... 44 Water pump control ........................................................................................................................................................ 44 Unit On/Off remote control – Electrical wiring................................................................................................................. 44 Double Setpoint – Electrical wiring ................................................................................................................................. 44 External water Setpoint reset – Electrical wiring (Optional) ............................................................................................ 44 Unit limitation – Electrical wiring (Optional) .................................................................................................................... 45

Guidelines for remote condenser application .............................................................................................................. 46 Refrigerant piping design................................................................................................................................................ 46 Determining Equivalent Line Length............................................................................................................................... 47 Liquid Line Sizing ........................................................................................................................................................... 48 Discharge (Hot Gas) Line Sizing .................................................................................................................................... 48 Oil Charge ...................................................................................................................................................................... 49

Operation ......................................................................................................................................................................... 50 Operator’s responsibilities .............................................................................................................................................. 50 Description of the machine ............................................................................................................................................. 50 Description of the refrigeration cycle .............................................................................................................................. 50 Description of the refrigeration cycle with partial heat recovery...................................................................................... 50 Controlling the partial recovery circuit and installation recommendations ...................................................................... 51 Compression process..................................................................................................................................................... 66

Pre-startup checks.......................................................................................................................................................... 69 General .......................................................................................................................................................................... 69 Units with external water pump ...................................................................................................................................... 70 Electrical power supply................................................................................................................................................... 70 Unbalance in power supply voltage................................................................................................................................ 70 Oil Heaters power supply ............................................................................................................................................... 70 Emergency Stop............................................................................................................................................................. 70

Startup procedure ........................................................................................................................................................... 71 Turning on the machine.................................................................................................................................................. 71 Seasonal shutdown ........................................................................................................................................................ 72 Starting up after seasonal shutdown .............................................................................................................................. 72

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System maintenance ...................................................................................................................................................... 73 General .......................................................................................................................................................................... 73 Compressor maintenance .............................................................................................................................................. 73 Lubrication...................................................................................................................................................................... 73 Routine maintenance ..................................................................................................................................................... 75 Replacement of filter dryer ............................................................................................................................................. 75 Procedure to replace the filter dryer cartridge ................................................................................................................ 75 Replacement of the oil filter ............................................................................................................................................ 76 Fr4200 compressor ........................................................................................................................................................ 77 Oil filter replacement procedure ..................................................................................................................................... 77 Procedure to replace oil filter.......................................................................................................................................... 77 Refrigerant charge.......................................................................................................................................................... 78 Refrigerant filling procedure ........................................................................................................................................... 78

Standard Checks............................................................................................................................................................. 79 Temperature and pressure sensors ............................................................................................................................... 79

Test sheet ........................................................................................................................................................................ 80 Water side measurements.............................................................................................................................................. 80 Refrigerant side measurements ..................................................................................................................................... 80 Electrical measurements ................................................................................................................................................ 81

Service and limited warranty.......................................................................................................................................... 82 Obligatory routine checks and starting up apparatuses under pressure .................................................................. 83 Important information regarding the refrigerant used................................................................................................. 84

List of tables Table 1 - Acceptable water quality limits ...................................................................................................................... 32 Table 2 - Equivalent Lengths (in meters) ...................................................................................................................... 48 Table 3 - Liquid line sizes ............................................................................................................................................... 48 Table 4 - Discharge line sizes ........................................................................................................................................ 49 Table 5 – Typical operating conditions with compressors at 100% ........................................................................... 71 Table 6 – Routine maintenance programme(Note 2) .................................................................................................... 75

List of Figures Fig. 1 - Lifting the unit........................................................................................................................................................ 29 Fig. 2 - Minimum clearance requirements for machine maintenance ................................................................................ 30 Fig. 3 - Water piping connection for evaporator ................................................................................................................ 31 Fig. 4 - Water piping connection for condenser and heat recovery ................................................................................... 31 Fig. 5 - Adjusting the safety flow switch ............................................................................................................................ 32 Fig. 6 - User connection to the interface M3 terminal board.............................................................................................. 45 Fig. 7 - Condenser Located with No Elevation Difference................................................................................................. 46 Fig. 8 - Condenser Located above Chiller Unit.................................................................................................................. 47 Fig. 9 - Condenser Located below Chiller Unit .................................................................................................................. 47 Fig. 10 - Refrigeration cycle of the EWWD - EJYNN Single Circuit................................................................................... 52 Fig. 11 - Refrigeration cycle of the EWLD - EJYNN Single Circuit .................................................................................... 53 Fig. 12 - Refrigeration cycle of the EWLD – EJYNN + OPLR Single Circuit...................................................................... 54 Fig. 13 - Refrigeration cycle of the EWWD Single Circuit – Total heat recovery ............................................................... 55 Fig. 14 - Refrigeration cycle of the EWWD – EJYNN/A Single Circuit............................................................................... 56 Fig.15 - Refrigeration cycle of the EWWD – EJYNN Double Circuits................................................................................ 57 Fig. 16 - Refrigeration cycle of the EWLD - EJYNN Double Circuits ................................................................................. 58 Fig. 17 - Refrigeration cycle of the EWLD - EJYNN +OPLR Double Circuits .................................................................... 59 Fig. 18 - Refrigeration cycle of the EWWD Double Circuits – Total heat recovery ............................................................ 60 Fig. 19 - Refrigeration cycle of the EWWD – EJYNN/A Double Circuits ........................................................................... 61 Fig.20 - Refrigeration cycle of the EWWD - EJYNN Trial Circuits ..................................................................................... 62 Fig. 21 - Refrigeration cycle of the EWLD - EJYNN Trial Circuits ..................................................................................... 63 Fig. 22 - Refrigeration cycle of the EWLD – EJYNN + OPLR Trial Circuits....................................................................... 64 Fig. 23 - Refrigeration cycle of the EWWD Trial Circuits– Total heat recovery ................................................................. 65 Fig. 24 - Picture of Fr4100 compressor ............................................................................................................................. 66 Fig. 25 - Compression process ......................................................................................................................................... 67 Fig. 26 - Refrigeration capacity control mechanism of compressor Fr4 ............................................................................ 68 Fig. 29 - Installation of control devices for Fr4 compressor ............................................................................................... 74

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IMPORTANT

The present Installation and Maintenance Manual is drawn up for information only and does not constitute an offer binding upon Daikin Specifications are subject to change without prior notice. Refer to the data communicated at the time of the order as per the “Documents Certified” such as “Dimensional Drawings”, “Wiring diagrams” and “Nameplate”. Daikin explicitly reject any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or interpretation of this Installation and Maintenance Manual.

WARNING Before starting the installation of the unit, please read this manual carefully. Starting up the unit is absolutely forbidden if all instructions contained in this manual are not clear.

Key to symbols

Important note: failure to respect the instruction can damage the unit or compromise functioning

Note regarding safety in general or respect of laws and regulations

Note concerning electrical safety

Description of the labels applied to the electrical panel

Single compressor Unit

1 – Lifting instructions 6 – Gas type 2 – Unit nameplate data 7 – Hazardous Voltage warning 3 – Non flammable gas symbol 8 – Cable tightening warning 4 – Manufacturer’s logo 9 – Water circuit filling warning 5 – Emergency stop 10 – Electrical hazard symbol

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Two Compressors Unit 1 – Unit nameplate data 6 – Non flammable gas symbol 2 – Lifting instructions 7 – Manufacturer’s logo 3 – Hazardous Voltage warning 8 – Gas type 4 – Cable tightening warning 9 – Electrical hazard symbol 5 – Water circuit filling warning 10 – Emergency stop

Three Compressors Unit

1 – Unit nameplate data 6 – Hazardous Voltage warning 2 – Lifting instructions 7 – Manufacturer’s logo 3 – Cable tightening warning 8 – Gas type 4 – Non flammable gas symbol 9 – Electrical hazard symbol 5 – Water circuit filling warning 10 – Emergency stop

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General information

IMPORTANT The units described in the present manual represent a valuable investment. Maximum care should be taken to ensure correct installation and appropriate working conditions of the units. A maintenance contract with a authorized service centre is highly recommended.

CAUTION This manual provides information about the features and procedures for the complete series. All units are delivered from factory as complete sets which include wiring diagrams and dimensional drawings with size, weight and features of each model. WIRING DIAGRAMS AND DIMENSIONAL DRAWINGS MUST BE CONSIDERED ESSENTIAL DOCUMENTS OF THIS MANUAL In case of any discrepancy between this manual and the two aforesaid documents, please refer to the wiring diagram and dimensional drawings.

IMPORTANT The present Installation and Maintenance Manual is drawn up for information only and does not constitute an offer binding upon Daikin Specifications are subject to change without prior notice. Refer to the data communicated at the time of the order as per the “Documents Certified” such as “Dimensional Drawings”, “Wiring diagrams” and “Nameplate”. Daikin explicitly reject any liability for any direct or indirect damage, in the broadest sense, arising from or related to the use and/or interpretation of this Installation and Maintenance Manual.

Key to symbols

Important note: failure to respect the instruction can damage the unit or compromise functioning

Note regarding safety in general or respect of laws and regulations

Note concerning electrical safety Safe use and maintenance of the unit, as explained in this manual, is fundamental to prevent accidents during operation and maintenance and repair work. Therefore, it is highly recommended that this document be read carefully, complied with and stored safely. Warnings for the operator The operator must read this manual before using the unit. The operator must be trained and instructed on how to use the unit. The operator must strictly follow local safety regulation and laws. The operator must strictly follow all instruction and limitation given for the unit Assistance Should additional maintenance be required, it is advisable to consult authorised staff before carrying out any repair work. Spare parts Spare parts to be used for maintenance of the unit must be original. Therefore, always consult the manufacturer. Receiving the machine The machine must be inspected for any possible damage immediately upon reaching its final place of installation. All components described in the delivery note must be carefully inspected and checked; any damage must be reported to the carrier. Before connecting the machine to earth, check that the model and power supply voltage shown on the nameplate are correct. Responsibility for any damage after acceptance of the machine cannot be attributed to the manufacturer.

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Checks To prevent the possibility of incomplete delivery (missing parts) or transportation damage, please perform the following checks upon receipt of the machine:

a) Before accepting the machine, please verify every single component in the consignment. Check for any damage. b) In the event that the machine has been damaged, do not remove the damaged material. A set of photographs

are helpful in ascertaining responsibility. c) Immediately report the extent of the damage to the transportation company and request that they inspect the

machine. d) Immediately report the extent of the damage to the manufacturer representative, so that arrangements can be

made for the required repairs. In no case must the damage be repaired before the machine has been inspected by the representative of the transportation company.

Purpose of this manual The purpose of this manual is to allow the installer and the qualified operator to carry out all required operations in order to ensure proper installation and maintenance of the machine, without any risk to people, animals and/or objects. This manual is an important supporting document for qualified personnel but it is not intended to replace such personnel. All activities must be carried out in compliance with local laws and regulations. Important information on the refrigerant used This product contains fluorate gases which have a greenhouse effect and which are covered by the Kyoto protocol. Do not release such gases into the atmosphere. Type of refrigerant: R134A GWP value(1) = 1300 The quantity of refrigerant used is indicated on the identity plate with the name of the unit. Routine inspections may be necessary pursuant to local and/or European laws, to check on possible refrigerant leakage. For more detailed information, contact your local dealer.

(1) GWP=Global warming potential

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NOMENCLATURE

EWW D 360 EJ YN N /A Machine type ERA: Air-cooled condensing unit EWW: Water cooled packaged water chiller EWL: Remote condenser water chiller EWA: Air-cooled chiller, cooling only EWY: Air-cooled chiller, heat pump EWC: Air-cooled chiller, cooling only with centrifugal fan EWT: Air-cooled chiller, cooling only with heat recovery Refrigerant D: R-134a P: R-407C Q: R-410A Capacity class in kW (cooling) Always 3-digit code Cap < 50 kW: not rounded: example: 37 kW => 037 50 < Cap < 999 kW: rounded 0/5: 536 kW => 535 Cap > 999 kW use C-symbol (C=100): example: 2578 kW => C26 Model series first character : letter A, B,…: major modification second character : letter A,B,... : minor modification DENV letter J-W… : minor modification New Series Voltage V1: ~ / 220 - 240 V / 50 Hz V3: 1~ / 230 V / 50 Hz T1: 3~ / 230 V / 50 Hz W1: 3N~ / 400 V / 50 Hz Y1: 3~ / 380-415 V / 50 Hz YN: 3~ / 400 V / 50 Hz Hydraulic module/Heat recovery version/Pump & electrical options (Consult Selection software) N: No Hydraulic components M: Modular A-V: Combination of specific options Option regarding efficiency version, sound version /H: High ambient version /A: High efficiency version /Q: Extra low noise version /Z: High efficiency and Extra low noise version

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Technical Specifications Technical data – EWWD - EJYNN TECHNICAL SPECIFICATIONS EWWD - EJYNN 340 400 460 550 Capacity Cooling kW 333 394 460 538

Type stepless Capacity control Minimum capacity % 25 25 25 25

Unit power input Cooling kW 71.5 86.8 101 120 EER 4.66 4.59 4.56 4.47 ESEER 5.06 4.96 4.93 4.86

Colour RAL7032 Casing Material Galvanized and painyedsteel sheet

Height mm 1821 1821 1821 1821 Width mm 1430 1430 1430 1430 Dimensions Unit Depth mm 3398 3398 3398 3398

Unit kg 2150 2160 2179 2224 Weight Operating Weight kg 2380 2396 2410 2457 Type Shell and tube Water volume l 193 193 183 172 Nominal water flow rate Cooling l/s 15.90 18.81 21.97 25.71

Nominal Water pressure drop Cooling kPa 37 50 54 62

Water heat exchanger Evaporator

Insulation material Closed cell foam elastomer Type Shell and Tube Number of condensers No. 1 1 1 1 Water volume l 37 43 48 61

Nominal water flow rate Cooling l/s 19.32 22.91 26.79 31.46


Water heat exchanger Condenser

Insulation Material Closed cell foam elastomer Type Screw compressor Oil charge l 18 18 18 18 Compressor Quantity 1 1 1 1 Sound Power Cooling dBA 93.7 96.6 96.7 96.7 Sound level Sound Pressure Cooling dBA 75.2 76.2 78.2 78.2 Refrigerant type R134a

Refrigerant charge kg 54 52 52 52 Refrigerant circuit

N. of circuits 1 1 1 1 Piping connections Evaporator water inlet/outlet mm 168.3 168.3 168.3 168.3 Piping connections Condenser water inlet/outlet in 5" 5" 5" 5" Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure

Notes Cooling capacity, unit power input in cooling and EER are based on the following conditions: evaporator 12°C/7°C; condenser 30/ 35°C.

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TECHNICAL SPECIFICATIONS EWWD - EJYNN 650 700 800 850 Capacity Cooling kW 640 705 782 844

Type stepless Capacity control Minimum capacity % 12.5 12.5 12.5 12.5

Unit power input Cooling kW 141 156 171 186 EER 4.53 4.52 4.57 4.55 ESEER 5.54 5.75 5.56 5.70






Insulation material Closed cell foam elastomer Type Shell and Tube Number of condensers No. 2 2 2 2 Water volume l 74 80 86 93 Nominal water flow rate Cooling l/s 37.33 41.11 45.56 49.21







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TECHNICAL SPECIFICATIONS EWWD - EJYNN 900 950 C10 C12 Capacity Cooling kW 910 986 1027 1155

Type stepless Capacity control Minimum capacity % 12.5 12.5 12.5 8.3












N. of circuits 2 2 2 3 Piping connections Evaporator water inlet/outlet mm 168.3 168.3 168.3 219.1 Piping connections Condenser water inlet/outlet in 5” 5” 5” 5” Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure


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TECHNICAL SPECIFICATIONS EWWD - EJYNN C13 C14 C15 Capacity Cooling kW 1204 1274 1346

Type Stepless Capacity control Minimum capacity % 8.3 8.3 8.3

Unit power input Cooling kW 268 282 298 EER 4.50 4.51 4.51 ESEER 5.56 5.56 5.54


Height mm 2323 2323 2323 Width mm 2135 2135 2135 Dimensions Unit Depth mm 4426 4426 4426

Unit kg 6097 6136 6174 Weight Operating Weight kg 6646 6670 6699 Type Shell and tube Water volume l 504 489 472 Nominal water flow rate Cooling l/s 57.53 60.87 64.32

Nominal Water pressure drop Cooling kPa 56 47 58


Insulation material Closed cell foam elastomer Type Shell and Tube Number of condensers No. 3 3 3 Water volume l 143 151 159 Nominal water flow rate Cooling l/s 70.32 74.36 78.57



Insulation Material Closed cell foam elastomer Type Screw compressor Oil charge l 54 54 54 Compressor Quantity 3 3 3 Sound Power Cooling dBA 100.8 101.2 103.0 Sound level Sound Pressure Cooling dBA 80.8 81.2 83.0 Refrigerant type R134a

Refrigerant charge kg 156 156 156 Refrigerant circuit

N. of circuits 3 3 3 Piping connections Evaporator water inlet/outlet mm 219.1 219.1 219.1 Piping connections Condenser water inlet/outlet in 5” 5” 5” Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure


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TECHNICAL SPECIFICATIONS EWWD - EJYNN C16 C17 C18 Capacity Cooling kW 1401 1455 1510

Type stepless Capacity control Minimum capacity % 8.3 8.3 8.3







Insulation material Closed cell foam elastomer Type Shell and Tube Number of condensers No. 3 3 3 Water volume l 167 174 183 Nominal water flow rate Cooling l/s 82.05 85.53 89.01





N. of circuits 3 3 3 Piping connections Evaporator water inlet/outlet mm 219.1 219.1 219.1 Piping connections Condenser water inlet/outlet in 5" 5" 5" Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure


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Technical data – EWWD - EJYNN/A TECHNICAL SPECIFICATIONS EWWD - EJYNN/A 360 440 500 600 Capacity Cooling kW 362 433 506 573

Type stepless Capacity control Minimum capacity % 25 25 25 25

Unit power input Cooling kW 70.7 85.3 100 120 EER 5.12 5.08 5.06 4.76 ESEER 5.34 5.27 5.22 5.11











N. of circuits 1 1 1 1

Piping connections Evaporator water inlet/outlet mm 168.3 168.3 168.3 168.3

Piping connections Condenser water inlet/outlet in 5" 5" 5" 5"

Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure


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TECHNICAL SPECIFICATIONS EWWD - EJYNN/A 700 800 850 950 Capacity Cooling kW 720 795 866 933

Type Stepless Capacity control Minimum capacity % 12.5 12.5 12.5 12.5




Unit kg 4964 4997 5049 5073 Weight Operating Weight kg 5582 5615 5671 5695 Type Shell and tube Water volume l 539 539 528 528 Nominal water flow rate Cooling l/s

20.58 20.58

20.44 24.98

24.75 24.75

23.31 28.48



Insulation material Closed cell foam elastomer Type Shell and Tube Number of condensers No. 2 2 2 2 Water volume l 157 173 188 199 Nominal water flow rate Cooling l/s

20.58 20.58

20.44 24.98

24.75 24.75

23.31 28.48







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TECHNICAL SPECIFICATIONS EWWD - EJYNN/A C10 C11 C12 Capacity Cooling kW 976 1038 1134

Type stepless Capacity control Minimum capacity % 12.5 12.5 12.5







Insulation material Closed cell foam elastomer Type Shell and Tube Number of condensers No. 2 2 2 Water volume l 209 209 209 Nominal water flow rate Cooling l/s

28.07 28.07

27.10 33.12

32.82 32.82





N. of circuits 2 2 2 Piping connections Evaporator water inlet/outlet mm 219.1 219.1 219.1 Piping connections Condenser water inlet/outlet in 5” 5” 5” Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure


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Technical data – EWLD – EJYNN (+ OPLR)

TECHNICAL SPECIFICATIONS EWLD – EJYNN (+ OPLR) 320 400 420 400

Capacity Cooling kW 328 391 428 504 Type stepless Capacity control Minimum capacity % 25 25 25 25

Unit power input Cooling kW 83.8 100 116 137 EER 3.91 3.90 3.70 3.67






Insulation material Closed cell foam elastomer Type Screw compressor Oil charge l - - - - Compressor Quantity 1 1 1 1 Sound Power Cooling dBA 93.7 96.6 96.7 96.7 Sound level Sound Pressure Cooling dBA 75.2 76.2 78.2 78.2 Refrigerant type R134a


N. of circuits 1 1 1 1 Piping connections Evaporator water inlet/outlet mm 168.3 168.3 168.3 168.3 Liquid connections Inlet mm 42 42 42 42 Gas discharge conn. Outlet mm 88.9 88.9 88.9 88.9

Water volume LR Version l 170 Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure

Notes

Cooling capacity and power input are based on: 12/7 °C entering/leaving evaporator water temperature; 45 °C saturated discharge temperature at the compressor The condenserless units have 3l of oil pre-charge. Total quantity of oil have to be established by the plant designer

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TECHNICAL SPECIFICATIONS EWLD – EJYNN (+ OPLR) 600 650 750 800

Capacity Cooling kW 596 657 730 788 Type stepless Capacity control Minimum capacity % 12.5 12.5 12.5 12.5

Unit power input Cooling kW 165 181 198 214 EER 3.61 3.63 3.69 3.67






Insulation material Closed cell foam elastomer Type Screw compressor Oil charge l - - - - Compressor Quantity 2 2 2 Sound Power Cooling dBA 96.9 97.3 97.8 98.9 Sound level Sound Pressure Cooling dBA 77.8 78.2 78.7 79.8 Refrigerant type R134a




Notes


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TECHNICAL SPECIFICATIONS EWLD – EJYNN (+ OPLR) 850 900 950 C10












Notes


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TECHNICAL SPECIFICATIONS EWLD – EJYNN (+ OPLR) C11 C12 C13 C14












Notes


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TECHNICAL SPECIFICATIONS EWLD – EJYNN (+ OPLR) C15 C16 C17

Capacity Cooling kW 1319 1370 1422 Type stepless Capacity control Minimum capacity % 8.3 8.3 8.3

Unit power input Cooling kW 366 386 405 EER 3.60 3.55 3.51



Unit kg 5208 5208 5208 Weight Operating Weight kg 5680 5680 5680 Type Shell and tube Water volume l 472 472 472 Nominal water flow rate Cooling l/s 63.00 65.48 67.96 Nominal Water pressure drop Cooling kPa 55 59 63


Insulation material Closed cell foam elastomer Type Screw compressor Oil charge l - - - Compressor Quantity 3 3 3 Sound Power Cooling dBA 103.0 103.0 103.0 Sound level Sound Pressure Cooling dBA 83.0 83.0 83.0 Refrigerant type R134a


N. of circuits 3 3 3 Piping connections Evaporator water inlet/outlet mm 219.1 219.1 219.1 Liquid connections Inlet mm 42 42 42 Gas discharge conn. Outlet mm 88.9 88.9 88.9 Water volume LR Version l 170 Safety devices High pressure (pressure switch) Safety devices Low pressure (pressure switch) Safety devices Emergency stop Safety devices High discharge temperature on the compressor Safety devices Phase monitor Safety devices Low pressure ratio Safety devices High oil pressure drop Safety devices Low oil pressure

Notes


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Sound pressure levels

EWWD - EJYNN, EWWD - EJYNN/A, EWLD - EJYNN

Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power EWWD - EJYNN 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dB(A) dB(A)

340 53.6 56.2 71.1 74.5 69.7 65.6 63.9 59.5 75.2 93.7 400 54.6 57.2 72.1 75.5 70.7 66.6 64.9 60.5 76.2 96.6 460 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 96.7 550 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 96.7 650 56.2 58.8 73.7 77.1 72.3 68.2 66.5 62.1 77.8 96.9 700 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 97.3 800 57.1 59.7 74.6 78.0 73.2 69.1 67.4 63.0 78.7 97.8 850 58.2 60.8 75.7 79.1 74.3 70.2 68.5 64.1 79.8 98.9 900 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 950 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 C10 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 C12 58.8 61.4 76.3 79.7 74.9 70.8 69.1 64.7 80.4 100.4 C13 59.2 61.8 76.7 80.1 75.3 71.2 69.5 65.1 80.8 100.8 C14 59.6 62.2 77.1 80.5 75.7 71.6 69.9 65.5 81.2 101.2 C15 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0 C16 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0 C17 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0 C18 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0

Note: The values are according to ISO 3744 and are referred to: evaporator 12/7°C, condenser 30/35° C, full load operation

Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power EWWD – EJYNN/A 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dB(A) dB(A)

360 53.6 56.2 71.1 74.5 69.7 65.6 63.9 59.5 75.2 93.7 440 54.6 57.2 72.1 75.5 70.7 66.6 64.9 60.5 76.2 96.6 500 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 96.7 600 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 96.7 750 56.2 58.8 73.7 77.1 72.3 68.2 66.5 62.1 77.8 96.9 800 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 97.3 850 57.1 59.7 74.6 78.0 73.2 69.1 67.4 63.0 78.7 97.8 950 58.2 60.8 75.7 79.1 74.3 70.2 68.5 64.1 79.8 98.9 C10 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 C11 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 C12 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8

Note: The values are according to ISO 3744 and are referred to: evaporator 12/7°C, condenser 30/35° C, full load operation

Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power EWLD - EJYNN 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dB(A) dB(A)

320 53.6 56.2 71.1 74.5 69.7 65.6 63.9 59.5 75.2 93.7 400 54.6 57.2 72.1 75.5 70.7 66.6 64.9 60.5 76.2 96.6 420 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 96.7 500 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 96.7 600 56.2 58.8 73.7 77.1 72.3 68.2 66.5 62.1 77.8 96.9 650 56.6 59.2 74.1 77.5 72.7 68.6 66.9 62.5 78.2 97.3 750 57.1 59.7 74.6 78.0 73.2 69.1 67.4 63.0 78.7 97.8 800 58.2 60.8 75.7 79.1 74.3 70.2 68.5 64.1 79.8 98.9 850 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 900 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 950 59.1 61.7 76.6 80.0 75.2 71.1 69.4 65.0 80.7 99.8 C10 58.5 61.1 76.0 79.4 74.6 70.5 68.8 64.4 80.1 100.1 C11 58.8 61.4 76.3 79.7 74.9 70.8 69.1 64.7 80.4 100.4 C12 59.2 61.8 76.7 80.1 75.3 71.2 69.5 65.1 80.8 100.8 C13 59.6 62.2 77.1 80.5 75.7 71.6 69.9 65.5 81.2 101.2 C14 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0 C15 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0 C16 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0 C17 61.4 64.0 78.9 82.3 77.5 73.4 71.7 67.3 83.0 103.0

Note: The values are according to ISO 3744 and are referred to: evaporator 12/7°C, 40°C saturated discharge temperature at the compressor (condenserless)

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EWWD - EJYNN, EWWD - EJYNN/A, EWLD - EJYNN with sound proof cabinet

Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power EWWD - EJYNN 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dB(A) dB(A)

340 43.6 46.2 61.1 64.5 59.7 55.6 53.9 49.5 65.2 83.7 400 44.6 47.2 62.1 65.5 60.7 56.6 54.9 50.5 66.2 86.6 460 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 86.7 550 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 86.7 650 46.2 48.8 63.7 67.1 62.3 58.2 56.5 52.1 67.8 86.9 700 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 87.3 800 47.1 49.7 64.6 68.0 63.2 59.1 57.4 53.0 68.7 87.8 850 48.2 50.8 65.7 69.1 64.3 60.2 58.5 54.1 69.8 88.9 900 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 950 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 C10 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 C12 48.8 51.4 66.3 69.7 64.9 60.8 59.1 54.7 70.4 90.4 C13 49.2 51.8 66.7 70.1 65.3 61.2 59.5 55.1 70.8 90.8 C14 49.6 52.2 67.1 70.5 65.7 61.6 59.9 55.5 71.2 91.2 C15 51.4 54.0 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0 C16 51.4 54.0 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0 C17 51.4 54.0 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0 C18 51.4 54 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0

Note: The values are according to ISO 3744 and are referred to: evaporator 12/7°C, condenser 30/35° C, full load operation;

Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power EWWD – EJYNN/A 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dB(A) dB(A)

360 43.6 46.2 61.1 64.5 59.7 55.6 53.9 49.5 65.2 83.7 440 44.6 47.2 62.1 65.5 60.7 56.6 54.9 50.5 66.2 86.6 500 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 86.7 600 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 86.7 750 46.2 48.8 63.7 67.1 62.3 58.2 56.5 52.1 67.8 86.9 800 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 87.3 850 47.1 49.7 64.6 68.0 63.2 59.1 57.4 53.0 68.7 87.8 950 48.2 50.8 65.7 69.1 64.3 60.2 58.5 54.1 69.8 88.9 C10 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 C11 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 C12 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8

Note: The values are according to ISO 3744 and are referred to: evaporator 12/7°C, condenser 30/35° C, full load operation;

Sound pressure level at 1 m from the unit in semispheric free field (rif. 2 x 10-5 Pa) Power EWLD - EJYNN 63 Hz 125 Hz 250 Hz 500 Hz 1000 Hz 2000 Hz 4000 Hz 8000 Hz dB(A) dB(A)

320 43.6 46.2 61.1 64.5 59.7 55.6 53.9 49.5 65.2 83.7 400 44.6 47.2 62.1 65.5 60.7 56.6 54.9 50.5 66.2 86.6 420 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 86.7 500 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 86.7 600 46.2 48.8 63.7 67.1 62.3 58.2 56.5 52.1 67.8 86.9 650 46.6 49.2 64.1 67.5 62.7 58.6 56.9 52.5 68.2 87.3 750 47.1 49.7 64.6 68.0 63.2 59.1 57.4 53.0 68.7 87.8 800 48.2 50.8 65.7 69.1 64.3 60.2 58.5 54.1 69.8 88.9 850 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 900 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 950 49.1 51.7 66.6 70.0 65.2 61.1 59.4 55.0 70.7 89.8 C10 48.5 51.1 66.0 69.4 64.6 60.5 58.8 54.4 70.1 90.1 C11 48.8 51.4 66.3 69.7 64.9 60.8 59.1 54.7 70.4 90.4 C12 49.2 51.8 66.7 70.1 65.3 61.2 59.5 55.1 70.8 90.8 C13 49.6 52.2 67.1 70.5 65.7 61.6 59.9 55.5 71.2 91.2 C14 51.4 54.0 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0 C15 51.4 54.0 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0 C16 51.4 54.0 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0 C17 51.4 54 68.9 72.3 67.5 63.4 61.7 57.3 73.0 93.0

Note: The values are according to ISO 3744 and are referred to: evaporator 12/7°C, 40°C saturated discharge temperature at the compressor (condenserless).

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Sound pressure correction factors for different distances EWWD - EJYNN

Distance (m) EWWD - EJYNN 1 5 10 15 20 25

340 0 -7.9 -12.7 -15.8 -18.1 -19.8 400 0 -7.9 -12.7 -15.8 -18.1 -19.8 460 0 -7.9 -12.7 -15.8 -18.1 -19.8 550 0 -7.9 -12.7 -15.8 -18.1 -19.8 650 0 -7.9 -12.7 -15.8 -18.1 -19.8 700 0 -7.5 -12.2 -15.3 -17.5 -19.3 800 0 -7.9 -12.7 -15.8 -18.1 -19.8 850 0 -7.5 -12.2 -15.3 -17.5 -19.3 900 0 -7.5 -12.2 -15.3 -17.5 -19.3 950 0 -7.9 -12.7 -15.8 -18.1 -19.8 C10 0 -7.5 -12.2 -15.3 -17.5 -19.3 C12 0 -7.5 -12.2 -15.3 -17.5 -19.3 C13 0 -7.5 -12.2 -15.3 -17.5 -19.3 C14 0 -7.5 -12.2 -15.3 -17.5 -19.3 C15 0 -7.5 -12.2 -15.3 -17.5 -19.3 C16 0 -7.5 -12.2 -15.3 -17.5 -19.3 C17 0 -7.5 -12.2 -15.3 -17.5 -19.3 C18 0 -7.5 -12.2 -15.3 -17.5 -19.3

Note: The values are dB(A) (pressure level), in open field conditions on reflecting surface (directivity factor Q=2)

EWWD - EJYNN/A

Distance (m) EWWD – EJYNN/A 1 5 10 15 20 25

360 0 -7.9 -12.7 -15.8 -18.1 -19.8 440 0 -7.9 -12.7 -15.8 -18.1 -19.8 500 0 -7.9 -12.7 -15.8 -18.1 -19.8 600 0 -7.9 -12.7 -15.8 -18.1 -19.8 750 0 -7.9 -12.7 -15.8 -18.1 -19.8 800 0 -7.5 -12.2 -15.3 -17.5 -19.3 850 0 -7.9 -12.7 -15.8 -18.1 -19.8 950 0 -7.5 -12.2 -15.3 -17.5 -19.3 C10 0 -7.5 -12.2 -15.3 -17.5 -19.3 C11 0 -7.9 -12.7 -15.8 -18.1 -19.8 C12 0 -7.5 -12.2 -15.3 -17.5 -19.3

Note: The values are dB(A) (pressure level), in open field conditions on reflecting surface (directivity factor Q=2)

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Operating limits Storage The units can be stored under the following environmental conditions: Minimum ambient temperature : -20°C Maximum ambient temperature : 53°C Maximum relative humidity : 95% non-condensing

ATTENTION Storage at a lower temperature than the minimum indicated can cause damage to certain parts including the electronic control unit and its LCD display.

ATTENTION Storage at a higher temperature than that indicated will cause the safety valves on the suction valves of the compressors to open.

ATTENTION Storage in a condensed atmosphere can damage the electronic components.

Storage at ambient temperature near or below 0°C, with water loops filled with water require to protect against water freezing. See anti-freeze protection in Mechanical installation paragraph. Operation The unit must operate within the limits indicated in the following diagram.

ATTENTION Operating outside the limits indicated may trigger the protection devices and interrupt functioning of the unit and, in extreme cases, may damage the unit. For any doubts, consult the manufacturer.

The operating limits refer to a fully load operating unit. For partial load operation limits please contact the factory

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Envelope EWWD – EJYNN, EWWD - EJYNN/A

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Envelope ELWD – EJYNN

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Mechanical Installation Shipping The stability of the machine during shipping must be ensured. If the machine is shipped with a wooden cross-plank on its base, the cross-plank must be removed only after the final destination has been reached. Responsibility The manufacturer declines all responsibility, present and future, for any damage to persons, animals or property caused by negligence of operators failing to follow the installation and maintenance instructions in this manual. All safety equipment must be regularly and periodically checked in accordance with this manual and with local laws and regulations regarding safety and environment protection. Safety The machine must be firmly secured to the ground. It is essential to observe the following instructions: - The machine can only be lifted using the lifting points on the base of the machine itself. These are the only points that

can support the entire weight of the unit. - Do not allow unauthorised and/or unqualified personnel to access the machine. - It is forbidden to access the electrical components without having opened the machine's general disconnecting switch

and switched off the power supply. - It is forbidden to access the electrical components without using an insulating platform. Do not access the electrical

components if water and/or moisture are present. - All operations on the refrigerant circuit and on components under pressure must be carried out by qualified personnel

only. - Replacement of a compressor or addition of lubricating oil must be carried out by qualified personnel only. - Sharp edges can cause wounds. Avoid direct contact. - Avoid introducing solid bodies into the water pipes while the machine is connected to the system. - A mechanical filter must be installed on the water pipe connected to the heat exchanger inlet. - The machine is supplied with safety valves, that are installed on both the high and the low pressure sides of the

refrigerant circuit. In case of sudden stop of the unit, follow the instructions on the Control Panel Operating Manual which is part of the on-board documentation delivered to the end user with this manual. It is recommended to perform installation and maintenance with other people. In case of accidental injury or unease, it is necessary to: - keep calm - press the alarm button if present in the installation site - move the injured person in a warm place far from the unit and in rest position - contact immediately emergency rescue personnel of the building or if the Health Emergency Service - wait without leaving the injured person alone until the rescue operators come - give all necessary information to the the rescue operators

WARNING Before carrying out any operation on the machine, please read this instruction and operating manual carefully. Installation and maintenance must be carried out only by qualified personnel that is familiar with the provisions of law and local regulations and has been trained properly or has experience with this type of equipment.

C

WARNING Avoid installing the machine in a place that could be dangerous during maintenance operations, such as (but not only) platforms without parapets or railings or areas not complying with the clearance requirements.

Handling and lifting Avoid bumping and/or jolting during unloading from the lorry and moving the machine. Do not push or pull the machine from any part other than the base frame. Secure the machine inside the lorry to prevent it from moving and causing damage to the panels and to the base frame. Do not allow any part of the machine to fall during transportation and/or unloading, as this could cause serious damage. All units of the series are supplied with four lifting points. Only these points may be used for lifting the unit, as shown in figure 1.

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Fig. 1 - Lifting the unit

WARNING Both the lifting ropes and the spacing bar and/or scales must be strong enough to support the machine safely. Please check the unit’s weight on the machine’s nameplate. The weights shown in the "Technical data" tables in the "General Information" chapter refer to standard units. Some specific machines might have accessories that increase their overall weight (heat recovery, etc.)

WARNING The machine must be lifted with the utmost attention and care. Avoid jolting when lifting and lift the machine very slowly, keeping it perfectly level.

Positioning and assembly All units are designed for installation indoors. The machine must be installed on a robust and perfectly level foundation; should the machine be installed on balconies or roofs, it might be necessary to use weight distribution beams. For installation on the ground, prepare a strong cement base that is at least 250 mm wider and longer than the machine. Also, this base must be strong enough to support the weight of the machine as stated in the technical specifications. If the machine is installed in places that are easily accessible to people and animals, it is advisable to install protection gratings for the compressor section. To ensure the best possible performance on the installation site, the following precautions and instructions must be followed: • Make sure to provide a strong and solid foundation to reduce noise and vibration as much as possible.

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• The water in the system must be particularly clean and all traces of oil or rust must be removed. A mechanical water filter must be installed on the machine’s inlet piping.

Minimum space requirements Every side of the machine must be accessible for all post-installation maintenance activities. Figure 2 shows the minimum space necessary.

Fig. 2 - Minimum clearance requirements for machine maintenance

Ventilation The temperature of the room where the unit is placed should be always maintained between 0°C and 40°C. Sound protection When sound levels require special control, great care must be exercised to isolate the machine from its base by appropriately applying anti-vibration elements (supplied as an option). Flexible joints must be installed on the water connections, as well. Water piping Piping must be designed with the lowest number of elbows and the lowest number of vertical changes of direction. In this way, installation costs are reduced considerably and system performance is improved. The water system should have:

1. Anti-vibration mountings in order to reduce transmission of vibrations to the underlying structure. 2. Isolating valves to isolate the machine from the water system during service. 3. Manual or automatic air venting device at the system’s highest point; drain device at the system’s lowest point.

Neither the evaporator nor the heat recovery device must be positioned at the system’s highest point. 4. A suitable device that can maintain the water system under pressure (expansion tank, etc.) 5. Water temperature and pressure indicators on the machine to assist the operator during service and

maintenance. 6. A filter or device which can remove debris from the water before it enters the pump (in order to prevent

cavitation, please consult the pump manufacturer for the recommended type of filter ). The use of a filter prolongs the life of the pump and helps keep the water system in a better condition.

7. Another filter must be installed on the machine inlet water pipe, near the evaporator and heat recovery (if installed). The filter prevents solid particles from entering the heat exchanger, as they could damage it or reduce its heat exchanging capacity.

8. If the machine is intended to replace of another, the entire water system must be emptied and cleaned before the new unit is installed. Regular tests and proper chemical treatment of water are recommended before starting up the new machine.

9. In the event that glycol is added to the water system as anti-freeze protection, pay attention to the fact that suction pressure will be lower, the machine’s performance will be lower and water pressure drops will be greater. All machine-protection systems, such as anti-freeze, and low-pressure protection will need to be readjusted.

10. No system is installed on the unit to prevent water freezing in case the ambient temperature goes down below 0°C (thermal insulation is not enough to assure freezing prevent). Machine and water pipes must be protected against freezing.

1200

1200

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Before insulating water piping, check that there are no leaks.

Fig. 3 - Water piping connection for evaporator

ATTENTION Install a mechanical filter on the inlet to each heat exchanger. Failure to install a mechanical filter allows solid particles and/or welding slag to enter the exchanger. Installation of a filter with a mesh size not exceeding 0.5 – 1 mm in diameter is advised. The manufacturer cannot be held responsible for any damage to exchangers ensuing from the lack of a mechanical filter.

Fig. 4 - Water piping connection for condenser and heat recovery Water treatment Before putting the machine into operation, clean the water circuit. Dirt, scaling, corrosion residue and other foreign material can accumulate inside the heat exchanger and reduce its heat exchanging capacity. Pressure drops can increase as well, thus reducing water flow. Proper water treatment therefore reduces the risk of corrosion, erosion, scaling, etc. The most appropriate water treatment must be determined locally, according to the type of system and local characteristics of the process water. The manufacturer is not responsible for damage to or malfunctioning of equipment caused by failure to treat water or by improperly treated water.

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Table 1 - Acceptable water quality limits PH (25°C) 6.8÷8.0 Total hardness (mg CaCO3 / l) < 200 Electricity conductivity μS/cm (25°C)

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Pressure drops Evaporator EWWD340~C18EJYNN EWLD320~C17EJYNN (+ OPLR)

A EWWD340EJYNN EWLD320EJYNN M EWWDC10EJYNN EWLD950EJYNN B EWWD400EJYNN EWLD400EJYNN N -- EWLDC10EJYNN C EWWD460EJYNN EWLD420EJYNN O EWWDC12EJYNN EWLDC11EJYNN D EWWD550EJYNN EWLD500EJYNN P EWWDC13EJYNN EWLDC12EJYNN E EWWD650EJYNN EWLD600EJYNN Q EWWDC14EJYNN EWLDC13EJYNN F EWWD700EJYNN EWLD650EJYNN R EWWDC15EJYNN EWLDC14EJYNN G EWWD800EJYNN EWLD750EJYNN S EWWDC16EJYNN EWLDC15EJYNN H EWWD850EJYNN EWLD800EJYNN T EWWDC17EJYNN EWLDC16EJYNN I EWWD900EJYNN EWLD850EJYNN U EWWDC18EJYNN EWLDC17EJYNN L EWWD950EJYNN EWLD900EJYNN

Water flow (l/s)

Pres

sure

dro

p (k

Pa)

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Condenser (1 pass 4-8°C) EWWD340~C18EJYNN

A EWWD340EJYNN L EWWD950EJYNN B EWWD400EJYNN M EWWDC10EJYNN C EWWD460EJYNN O EWWDC12EJYNN D EWWD550EJYNN P EWWDC13EJYNN E EWWD650EJYNN Q EWWDC14EJYNN F EWWD700EJYNN R EWWDC15EJYNN G EWWD800EJYNN S EWWDC16EJYNN H EWWD850EJYNN T EWWDC17EJYNN I EWWD900EJYNN U EWWDC18EJYNN

Pres

sure

dro

p (k

Pa)

Water flow (l/s)

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Condenser (2 passes 9-15°C) EWWD340~C18EJYNN


Pres

sure

dro

p (k

Pa)

Water flow (l/s)

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Evaporator EWWD360~C12EJYNN/A

A EWWD360EJYNN/A B EWWD440EJYNN/A C EWWD500EJYNN/A D EWWD600EJYNN/A E EWWD750EJYNN/A F EWWD800EJYNN/A G EWWD850EJYNN/A H EWWD950EJYNN/A I EWWDC10EJYNN/A L EWWDC11EJYNN/A M EWWDC12EJYNN/A

Water flow (l/s)

Pres

sure

dro

p (k

Pa)

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Condenser (2passes 4-8°C) EWWD360~C12EJYNN/A

A EWWD360EJYNN/A B EWWD440EJYNN/A C EWWD500EJYNN/A D EWWD600EJYNN/A E EWWD750EJYNN/A F EWWD800EJYNN/A G EWWD850EJYNN/A H EWWD950EJYNN/A I EWWDC10EJYNN/A L EWWDC11EJYNN/A M EWWDC12EJYNN/A

Water flow (l/s)

Pres

sure

dro

p (k

Pa)

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Total heat recovery (option on request) Pressure drops

Condenser (1 pass 4-8°C) EWWD340~C18EJYNN


Pres

sure

dro

p (k

Pa)

Water flow (l/s)

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Condenser (2passes 9-15°C) EWWD340~C18EJYNN


Pres

sure

dro

p (k

Pa)

Water flow (l/s)

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Partial Heat recovery (option on request) Pressure drops

EWWD340~C18EJYNN


Pres

sure

dro

p (k

Pa)

Water flow (l/s)

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Electrical Installation General specifications

CAUTION All electrical connections to the machine must be carried out in compliance with applicable laws and regulations. All installation, operating and maintenance activities must be carried out by qualified personnel. Please refer to the specific wiring diagram for the machine that you have purchased and which was sent with the unit. Should the wiring diagram not appear on the machine or should it have been lost, please contact your dealer who will provide for a copy to be forwarded.

CAUTION Use copper conductors only. Use of conductors in any material other than copper could cause overheating or corrosion at the connection points and damage the unit. To avoid interference, all control wires must be installed separately from the power cables. Use separate electrical conduits for this purpose.

CAUTION Before servicing the machine in any way, open the main disconnecting switch on the machine’s main power supply. When the machine is off but the disconnector switch is in the closed position, unused circuits are live, as well.

CAUTION Concurrence of single-phase and three-phase charges and unbalance between phases can cause leakages towards ground of up to 150 mA during the normal operation of the units of the series. If the unit includes devices that cause superior harmonics (such as VFD and phase cut), the leakage towards ground could increase to very high values (about 2 Ampere). The protections for the power supply system must be designed in accordance with the above mentioned values. The area where unit is installed has to be restricted accessible by authorized personnel only.

Electrical data

EWWD-EJYNN

Maximum Current for

wires sizing

Maximum Starting Current

(a)

Power factor at nominal

conditions

Main Switch

Short Circuit Current

Maximum Compressor

Current Circuit 1

Maximum Compressor

Current Circuit 2

Maximum Compressor

Current Circuit 3

Compressor Inrush Current Circuit 1



Compressor Fuse Circuit

1


2


3

Control Transformer

Control Circuit

Breaker

340 215 303 0.88 400 A 25 kA 195 - - 303 - - 250A gG - - 500 VA 4A 400 266 464 0.86 400 A 25 kA 242 - - 464 - - 315A gG - - 500 VA 4A 460 310 464 0.88 400 A 25 kA 282 - - 464 - - 315A gG - - 500 VA 4A 550 353 464 0.90 400 A 25 kA 321 - - 464 - - 355A gG - - 500 VA 4A 650 429 452 0.87 630 A 25 kA 195 195 - 303 303 - 250A gG 250A gG - 500 VA 4A 700 481 614 0.86 630 A 25 kA 195 242 - 303 464 - 250A gG 315A gG - 500 VA 4A 800 532 644 0.86 630 A 25 kA 242 242 - 464 464 - 315A gG 315A gG - 500 VA 4A 850 576 673 0.87 630 A 25 kA 242 282 - 464 464 - 315A gG 315A gG - 500 VA 4A 900 620 673 0.88 800 A 25 kA 282 282 - 464 464 - 315A gG 315A gG - 500 VA 4A 950 663 703 0.89 800 A 25 kA 282 321 - 464 464 - 315A gG 355A gG - 500 VA 4A C10 706 702 0.89 800 A 25 kA 321 321 - 464 464 - 355A gG 355A gG - 500 VA 4A C12 799 643 0.86 1000 A 25 kA 242 242 242 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C13 843 643 0.86 1000 A 25 kA 242 242 282 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C14 887 672 0.87 1000 A 25 kA 242 282 282 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C15 931 672 0.88 1250 A 25 kA 282 282 282 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C16 974 672 0.88 1250 A 25 kA 282 282 321 464 464 464 315A gG 315A gG 355A gG 1000 VA 8A C17 1016 702 0.89 1250 A 25 kA 282 321 321 464 464 464 315A gG 355A gG 355A gG 1000 VA 8A C18 1059 702 0.89 1250 A 25 kA 321 321 321 464 464 464 355A gG 355A gG 355A gG 1000 VA 8A

EWWD - EJYNN/A

Massima corrente per dim.

cavi


(a)


conditions

Main Switch


Maximum Compressor

Current Circuit 1

Maximum Compressor

Current Circuit 2

Maximum Compressor

Current Circuit 3





1


2


3

Control Transformer

Control Circuit

Breaker

360 215 303 0.88 400 A 25 kA 195 - - 303 - - 250A gG - - 500 VA 4A 440 266 464 0.86 400 A 25 kA 242 - - 464 - - 315A gG - - 500 VA 4A 500 310 464 0.88 400 A 25 kA 282 - - 464 - - 315A gG - - 500 VA 4A 600 353 464 0.90 400 A 25 kA 321 - - 464 - - 355A gG - - 500 VA 4A 750 429 452 0.87 630 A 25 kA 195 195 - 303 303 - 250A gG 250A gG - 500 VA 4A 800 481 614 0.86 630 A 25 kA 195 242 - 303 464 - 250A gG 315A gG - 500 VA 4A 850 532 644 0.86 630 A 25 kA 242 242 - 464 464 - 315A gG 315A gG - 500 VA 4A 950 576 673 0.87 630 A 25 kA 242 282 - 464 464 - 315A gG 315A gG - 500 VA 4A C10 620 673 0.88 800 A 25 kA 282 282 - 464 464 - 315A gG 315A gG - 500 VA 4A C11 663 703 0.89 800 A 25 kA 282 321 - 464 464 - 315A gG 355A gG - 500 VA 4A C12 706 702 0.89 800 A 25 kA 321 321 - 464 464 464 355A gG 355A gG - 500 VA 4A

D – KIMWC00412-09EN -43/88

EWLD-EJYNN

Maximum Current for

wires sizing


(a)


conditions

Main Switch


Maximum Compressor

Current Circuit 1

Maximum Compressor

Current Circuit 2

Maximum Compressor

Current Circuit 3





1


2


3

Control Transformer

Control Circuit

Breaker

320 215 303 0.88 400 A 25 kA 195 - - 303 - - 250A gG - - 500 VA 4A 400 266 464 0.86 400 A 25 kA 242 - - 464 - - 315A gG - - 500 VA 4A 420 310 464 0.88 400 A 25 kA 282 - - 464 - - 315A gG - - 500 VA 4A 500 353 464 0.90 400 A 25 kA 321 - - 464 - - 355A gG - - 500 VA 4A 600 429 452 0.87 630 A 25 kA 195 195 - 303 303 - 250A gG 250A gG - 500 VA 4A 650 481 614 0.86 630 A 25 kA 195 242 - 303 464 - 250A gG 315A gG - 500 VA 4A 750 532 644 0.86 630 A 25 kA 242 242 - 464 464 - 315A gG 315A gG - 500 VA 4A 800 576 673 0.87 630 A 25 kA 242 282 - 464 464 - 315A gG 315A gG - 500 VA 4A 850 620 673 0.88 800 A 25 kA 282 282 - 464 464 - 315A gG 315A gG - 500 VA 4A 900 663 703 0.89 800 A 25 kA 282 321 - 464 464 - 315A gG 355A gG - 500 VA 4A 950 706 702 0.89 800 A 25 kA 321 321 - 464 464 - 355A gG 355A gG - 500 VA 4A C10 747 614 0.86 1000 A 25 kA 195 242 242 303 464 464 250A gG 315A gG 315A gG 1000 VA 8A C11 799 643 0.86 1000 A 25 kA 242 242 242 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C12 843 643 0.86 1000 A 25 kA 242 242 282 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C13 887 672 0.87 1000 A 25 kA 242 282 282 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C14 931 672 0.88 1250 A 25 kA 282 282 282 464 464 464 315A gG 315A gG 315A gG 1000 VA 8A C15 974 672 0.88 1250 A 25 kA 282 282 321 464 464 464 315A gG 315A gG 355A gG 1000 VA 8A C16 1016 702 0.89 1250 A 25 kA 282 321 321 464 464 464 315A gG 355A gG 355A gG 1000 VA 8A C17 1059 702 0.89 1250 A 25 kA 321 321 321 464 464 464 355A gG 355A gG 355A gG 1000 VA 8A

Electrical components All power and interface electrical connections are specified in the wiring diagram that is shipped with the machine. The installer must supply the following components:

- Power supply wires (dedicated conduit) - Interconnection and interface wires (dedicated conduit) - Thermal-magnetic circuit breaker of suitable size (please see electrical data).

Electrical wiring

Power circuit: Connect the electrical power supply cables to the terminals of the general circuit breaker on the machine’s terminal board. The access panel must have a hole of appropriate diameter for the cable used and its cable gland. A flexible conduit can also be used, containing the three power phases plus earth. In any case, absolute protection against any water penetrating through the connection point must be ensured. Control circuit: Every machine of the series is supplied with an auxiliary 400/115V control circuit transformer. No additional cable for the control system power supply is thus required. Only if the optional separate accumulation tank is requested, the electrical anti-freeze resistance must have a separate power supply.

Oil Heaters Each circuit has an electrical resistance installed in the compressor, whose purpose is to keep the oil warm thus preventing the presence of liquid refrigerant mixed with the oil in the compressor. Obviously, the operation of the electrical resistance is guaranteed only if there is a constant power supply. If it is not possible to keep the machine powered when inactive during winter, apply at least two of the procedures described in the “Mechanical Installation” section under the “Anti-freeze protection of evaporator and exchangers”. If the plant uses pumps outside